package com.ruoyi.system.service;


import com.ruoyi.system.domain.Difficult;

import java.util.List;

/**
 * Created with IntelliJ IDEA.
 *
 * @Author: zhang
 * @Date: 2023/02/19/10:17
 * @Description:
 */

public interface DifficultService {
    /**
     *
     * @param difficult
     * @return
     */
    boolean saveOrUpdate(Difficult difficult);

    boolean removeById(Integer id);

    boolean removeByIds(Integer[] ids);

    Difficult queryById(Integer id);

    List<Difficult> queryDifficults(Difficult difficult);

}
